nixos/hosts/semita/default.nix

{
  inputs,
  lib,
  pkgs,
  configVars,
  ...
}: let
  # Disko setup
  fsType = "btrfs"; # one of ext4 or btrfs. Use btrfs if using impermanence
  dev = "/dev/nvme0n1"; # depends on target hardware
  encrypted = true; # currrently only applies to btrfs
  btrfsMountDevice =
    if encrypted
    then "/dev/mapper/crypted"
    else "/dev/root_vg/root";
  user = "sam";
  impermanence = true;
  pieholeIp = configVars.networking.addresses.piehole.ip;
  gatewayIp = configVars.networking.addresses.gateway.ip;
  semitaIp = configVars.networking.addresses.semita.ip;

in {
  imports = [
    # Create users for this host
    ../common/users/${user}

    # Disk configuration
    inputs.disko.nixosModules.disko
    (import ../common/disks {
      device = dev;
      impermanence = impermanence;
      fsType = fsType;
      encrypted = encrypted;
    })

    # Impermanence
    (import ../common/disks/btrfs/impermanence.nix {
      btrfsMountDevice = btrfsMountDevice;
      lib = lib;
    })

    # Import core options
    ./hardware-configuration.nix
    ../common/core

    # Import optional options
    ../common/optional/persistence.nix
    ../common/optional/pipewire.nix
    ../common/optional/openssh.nix
    ../common/optional/dwm.nix
    ../common/optional/nfs-mounts/media.nix
    ../common/optional/nfs-mounts/homeshare.nix
    ../common/optional/printing.nix
    ../common/optional/docker
    ../common/optional/nixos-containers/nix-bitcoin.nix
    ../common/optional/nixos-containers/postgres.nix
    ../common/optional/nixos-containers/jellyfin.nix
    ../common/optional/nixos-containers/worker.nix
  ];

  fileSystems."/media/main-ssd" = {
    device = "/dev/disk/by-uuid/ba884006-e813-4b67-9fe6-62aea08b3b59";
    fsType = "ext4";
  };

  boot = {
    blacklistedKernelModules = ["snd_hda_intel" "snd_soc_skl"];
    kernelPackages = pkgs.linuxPackagesFor pkgs.linux_latest;
    loader = {
      systemd-boot.enable = true;
      efi.canTouchEfiVariables = true;
      timeout = 3;
    };
  };

  services = {
    xserver = {
      dpi = 144;
      upscaleDefaultCursor = true;
    };
  };

  environment.variables = {
    GDK_SCALE = "2";
    GDK_DPI_SCALE = "0.6";
    _JAVA_OPTIONS = "-Dsun.java2d.uiScale=1.8";
    QT_AUTO_SCREEN_SCALE_FACTOR = "1";
    XCURSOR_SIZE = "32";
  };

  hardware.firmware = [
    pkgs.sof-firmware
  ];

  # Add hardware support for intel gpus as specified here: https://nixos.wiki/wiki/Jellyfin
  nixpkgs.config.packageOverrides = pkgs: {
    vaapiIntel = pkgs.vaapiIntel.override {enableHybridCodec = true;};
  };

  hardware.opengl = {
    enable = true;
    extraPackages = with pkgs; [
      intel-media-driver
      intel-vaapi-driver
      vaapiVdpau
      libvdpau-va-gl
      intel-compute-runtime
      # only available on unstable
      unstable.vpl-gpu-rt
      intel-media-sdk
    ];
  };

  networking = {
    hostName = "semita";
    nameservers = ["${pieholeIp}" "${gatewayIp}" "8.8.8.8"];
    defaultGateway = "${gatewayIp}";
    useDHCP = false;
    bridges = {
      br0 = {
        interfaces = ["eth0"];
      };
    };
    interfaces.br0 = {
      ipv4.addresses = [
        {
          "address" = "${semitaIp}";
          "prefixLength" = 24;
        }
      ];
    };
  };

  # Using non-Nix Python Packages with Binaries on NixOS https://github.com/mcdonc/.nixconfig/blob/e7885ad18b7980f221e59a21c91b8eb02795b541/videos/pydev/script.rst
  programs.nix-ld.enable = true;
  programs.nix-ld.libraries = with pkgs; [
    zlib # numpy
    libgcc  # sqlalchemy
    # that's where the shared libs go, you can find which one you need using 
    # nix-locate --top-level libstdc++.so.6  (replace this with your lib)
    # ^ this requires `nix-index` pkg
  ];

  environment.variables = {
      NIX_LD_LIBRARY_PATH="/run/current-system/sw/share/nix-ld/lib";
      NIX_LD="/run/current-system/sw/share/nix-ld/lib/ld.so";
      LD_LIBRARY_PATH=lib.mkForce "$NIX_LD_LIBRARY_PATH";
  };

  services.libinput.enable = true;
}